<template>
  <div style="width: 100%; height: 100vh; overflow: hidden"> <!--  :style="bg" 加背景图片-->
    <div style="width: 400px; margin: 100px auto">
      <div style="font-size: 30px; width:410px; text-align: center; padding: 30px 0">大学生心理健康管理中心</div>
      <el-form ref="form" :model="form" size="normal" :rules="rules">
        <el-form-item prop="account">
          <el-input prefix-icon="el-icon-user-solid" v-model="form.account" placeholder="请输入账号"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input prefix-icon="el-icon-lock" v-model="form.password" show-password placeholder="请输入密码"></el-input>
        </el-form-item>
        <el-form-item>
         <div style="display: flex">
           <el-input prefix-icon="el-icon-key" v-model="form.validCode" style="width: 50%;" placeholder="请输入验证码" @keyup.enter="login"></el-input>
           <ValidCode @input="createValidCode" />
         </div>
        </el-form-item>
        <el-form-item>
          <el-button style="width: 100%" type="primary" @click="login">登 录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import request from "@/utils/request";
import ValidCode from "@/components/ValidCode";

export default {
  name: "Login",
  components: {
    ValidCode
  },
  data() {
    return {
      form: {
        account: '',
        password: ''
      },
      rules: {
        account: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
        ],
      },
      validCode: ''
    }
  },
  created() {
    sessionStorage.removeItem("user")
  },
  methods: {
    // 接收验证码组件提交的 4位验证码
    createValidCode(data) {
      this.validCode = data
    },
    login() {
      this.$refs['form'].validate((valid) => {
        if (valid) {
          if (!this.form.validCode) {
            this.$message.error("请填写验证码")
            return
          }
          if(this.form.validCode.toLowerCase() !== this.validCode.toLowerCase()) {
            this.$message.error("验证码错误")
            return
          }
          request.post("/userlogin/login", this.form).then(res => {
            if (res.code == '200') {
              let data = '';
              console.log(res)
              this.$message({
                type: "success",
                message: "登录成功"
              })
              if(res.data.userFlag == '8'){
                // 学生的用户信息在返回数据data的student对象内
                console.log(data);
                res.data.student.studentPassword = null;
              }else{
                res.data.userPassword = null
              }
              sessionStorage.setItem("user", JSON.stringify(res.data))   // 缓存用户信息
              console.log(sessionStorage.getItem("user"))     // 打印缓存的用户信息,学生的话要user.student
              this.$router.push("/home")  //登录成功之后进行页面的跳转，跳转到主页
            }
            else{
              // console.log('err')
              this.$message({
                type: "error",
                message: res.msg
              })
            }
          })
        }
      })
    }
  }
}
</script>

<style scoped>

</style>
